Vault ventilator



June 1931. o. B. M CLKNTOCK- ET AL 1,810,134

' VAULT YENTILATOR Filed Dec. 13, 1929 3 Sheets-Sheet l June 16, 1931. o. B. McCLINTOCK ET AL 1 VAULT VENTILATOR Fileq Dec. 15, 1929 3 Sheets-Sheet 2 June 16,1931. 0. a. McCLlNTOCK ET AL I VAULT VENTILATOR Filed' Dec. 15, 1929 3 Sheets-Sheet 3 M AF Ngi- A@ T "kw/MM; 76k

Patented June 16, 1931 entree PATT OFFICE,-

OLIVER B. MoCLIN'lOOK, SILVAN R. POPE, AND EDW'ARLD C. HANSON, OF MINNEAPOLIS,

MINNESOTA, ASSTGNORS TO '0. B. MGCLINTOCK COMPANY, OF MINNEAPOLIS, MINNE- VAULT VENTILATOR Application filed December 13, 1929. Serial No. 413,824.

This invention relates to vault ventilators such as are serviceable in connection with bank vaults and the like and the well known purpose of which is to provide a supply of fresh air to the interior of such vaults in instances where persons are locked within the vault.

Generally stated, the invention has for its objects greatest possible efliciency in the sealing action when the ventilator is closed, high efliciency in fresh air supply when opened and operative,ready adaptability and adjustability in application in walls of different thickness and certainty and simplicity in the means for opening the ventilator and rendering the supply of fresh air available. These features, however, and others will more clear- 1y appear after having firstdescribed a commercial embodiment of the invention.

In the drawings, which illustrate the invention, like characters indicate like parts throughout the several views.

Referring to the drawings:

Fig. 1 is a vertical axial section taken through the improved vault ventilator and a portion of a vault wall plied; I

Fig. 2 is a transverse vertical section taken on "the irregular line 22 of Fig. 1;

Fig. 3 is a transverse vertical section taken on the line 3-3 of Fig. 1;

Fig. 4 is a transverse vertical section taken on the line ll of Fig. 1;

Fig. 5 is an elevation looking at the inner end of the vault ventilator;

Fig. 6 is a transverse vertical section taken on the line 66 of Fig. 1; I

Fig. 7 is an elevation looking at the outer in which it is apend of the vault ventilator;

Fig. 8 is a fragmentary-perspective.showing the outer end of the rotary ,multi-section core; 7

Fig. 9 is a perspective showing a rotary core extension stern removed fromv the core shown in Fig. 8; and

Fig. 10 is a horizontal section taken on the line 10.10 of Fig. 5. p p

A portion of a monolithic concrete vault wall is indicated by the numeral 11' and in which wall the improved vault ventilator is installed. This wall is shown as provided with an outside finish 11 and an inside finish 11 and which finishes may be of plaster, steel, marble or the like and, of course, constitute no part of the present invention. i Firmly embedded in the wall 11 is a metallic casing 12 which has a cylindrical interior, hence will be hereinafter treated as the cylinder, and certain external anchoring lugs 13. The numeral 14 indicates the inside metal finishing plate secured to the inner. face of the wall 11 and against which the inner,

end of the cylinder 12 abuts. An innerend head plate 15 preferably in the form of a heavy metallic disc is fitted against the finishing plate 14 and is rigidly secured thereto and to the inner end of the anchored cylinder 12 by means including machine screws 16 or the like.

At its outwardly extended end, cylinder 12 as shown, is flanged and to its flanged end,

by machine screws 17 orthe like, is rigidly secured an extension ring or section 18 and which latter terminates short of the outer surface of the wall. Rigidly secured within theextension ring 18 is a non-rotary core section 19. This core section 19 which is in the form of a heavy metal disc may be permanently and rigidly secured in the anchored extension ring 18 by any suitable means but,

as shown, is thus anchored by means of heavy pins 20 driven through co-incident holesin said ring and core section. v

Rigidly secured within the cylinder 12, spaced at its inner end from the head 15 and at its outer end from the fixed core section 19 isan intermediate core section 21, the external surface of which is cylindrical so thatit closely fits the interior of the cylinder 12. This intermediate core section 21 is rigidly but detachably secured within the I cylinder preferably by means of set screws 22 screwed through the cylinder and into said core section. These screws 22 are accessible from the interior of a motor and fan chamber 23 that is formed in the wall 11 at the inner portion thereof adjacent the inside finishing plate 14:.

Mounted to rotate within the cylinder in the space between the outer end of the inter mediate fixed core section 21 and the fixed core section 19 is a rotary cylindrical core section 24; and mounted to rotate in the space between the inner end of intermediate core section 21 and the inner head 15 is a similar rotary cylindrical core section 25. Core section 24 works in close contact with the adja cent end faces of fixed core sections 19 and 21 and the core section 25 works in close contact with the inner end of core section 21 but is spaced from the head 15. a

The two rotary core sections 24 and 25 are pinned, keyed or otherwise rigidly secured to an axial operating shaft 26 that extends in' ward through the head 15 and is provided with an operating handle-27. Fixed core section 19 is provided with diametrically spaced air conduits 19a, intermediate core section 21 is provided with diametrically opposite air conduits 21a, and rotary core sections 24' and 25, respectively, are provided with diametrically opposite air conduits 24a and 25a. The above noted air conduits of the rotary and fixed core sections are adapted for registration when and only when the rotary core sections 24 and 25 are turned into one certain position, as will hereinafter more clearly appear. One of the air conduits, of rotary core section 25 at its inner end is closed by a plug 28 and is provided with a diametrically opening port29 which, when the air Conduits of the rotary and non-rotary core sections are in registration, registers with the air intake spout 30 of a blower 31. This blower 31 is placed within the chamber 23 with its discharge spout 32 opening into the vault, as shown, through a screen-covered opening 33 formed in the inside finish plate 14. Blower 31 is arranged to be driven by a small electric motor 34, the rotor of which is preferably connected directly to the rotor of said blower.

Said motor as is obvious, is also within the chamber 23. The rotary core section 24 is shown as provided with a peripheral packing ring 24?) that forms an air-tight joint between said section and the interior of the cylinder 12. Means presently to be described make it possible to fit and adjust the ventilator to wells of different thickness.

Into the inner end of the axially open air conduit 25a of rotary core section 25 is quite tightly driven a conduit extension tube 35, the projected inner end of which is formed integrally with or otherwise rigidly secured to a segmental joint plate 36, best shown in Figs. 1 and 3, that works in close contact with the inside surface of the head plate 15. Tube 35 will register with a port 37 when the port 29 is in registration with the intake spout 30 of the blower, as shown in Figs. 1 and 2. The port open position just noted is shown in Figs. 1, 2,3, 4 and 6, and by full lines in Fig. 7 here it will be noted that in said port open position, the operating lever 27 is against an upper stop pin 38 that projects from the head plate 15. The extreme movement of the lever 27 away from pin 38 is limited by another stop pin 39 that projects from the head plate 15 and when said lever is engaged with stop pin 39, joint plate 36 will close port 37 and this port-opening and closing action will be more fully considered in the summary of the operation. To lock the lever 27 in its extreme positions, it is shown as provided with a spring-pressed lock pin 40 that is engageable with detents 41 in the head plate 15 and for the release of said pin, lever 27 is provided with pivoted releasing arm 42.

To further adapt the device for application to walls of different thickness, conduit-extending tubes 43 and 44 are quite tightly driven into the air conduits 19a of the fixed core section 19. As shown and preferably, these tubes 42 and 44 at their outer ends are formed integrally with or otherwise rigidly secured to an outside finish plate 45 that is perforated in line with the interiors of said tubes. This plate 45 by suitable means such as machine screws 46 is anchored to the extension ring 18 of cylinder 12.

As a further means for opening and closingthe air conduits through the ventilating device, a valve-acting joint plate 47 of disclike form is arranged to work against the outer face of finish plate 45 and is provided with perforations or large air passages 43 that are adapted to register with the conduits of tubes 43 and 44. The joint plate 47 is shown as provided with tubular extensions 49 that are rigidly secured to said plate and aligned with the air passages 48. Joint plate 47 with the tube extensions 49 is caused to rotate with the rotary core sections so that said joint plate operates as an auxiliary air cut-off device; and preferably the connection just noted is an axially extensible connection made up of a tubular exten sion shaft or sleeve 50 and a stem 51. Tubular shaft 50 is shown as extended axially through and rotatably mounted in the fixed core section 19 and tightly driven into or otherwise rigidly secured in the rotary core section 24. Stem 51 at its outer end has a head 52 provided with. dowel pins 53 seated in the joint plate A screw 54, see par ticularly Fig. 1, secures the parts 47 and 49 to the head 52 of stem 51. Tubular sha t 50, of course, must rotate with shaft 26 and the rotary core sections. To cause stem 51 to pan take of the same rotation while free for axial adjustments, said tubularshaft 50 is pro vided with longitudinal slots 55 and the stem 51 is provided with pins 56 that work in said slots. 7

For the purpose of locking the ventilator and directing the attention of a person that may be locked in the vault to the operating handle 27, a constantly lit pilot light including an electric lightbulb 57 and an electric supply circuit not shown, is provided. This bulb 57 is preferably located in a casing. 58

set into the Wall, and the finish plate 14 is shown as provided with a lens 59 just in front of said pilot light. To afiord better light in the vault while the ventilator is in operation, there are shown two light bulbs 60 applied in asocket 60a suitably supported in the chamber 23. Finish plate 14 is shown as provided with lenses 61 located in front of the light bulb 60. These two light bulbs 60 are shown as connected in multiple with motor 34: in an electric circuit 62 thatincludes a battery or source of electrical energy 63 and a switch, which latter is indicated as an entirety by the numeral 64. Switch Gamay be of any suitable type but preferably is of a quickacting type arranged to be quickly opened and quickly closed by movements of an arm' 65, see particularly Fig. 4'. Arm 65 is shown as forked at its free end and arranged to be engaged by an operating pin 66 that projects fromthe hub portion of operating lever 27. The lighting and electrical connect-ions described may take various forms and hence it is suiiicient for the purpose of this case to state that when operating lever 27 is in position to close the air conduits of theventilat- 'ng devices, the switch 64, under the action of. pin 66, will open circuit 62 so that the motor and fan will be idle and the bulbs will be dark, but when lever 27 is moved in posinon to open the air ventilating conduits, pin 66 operating on arm 65 will cause switch 6 to close circuit 62 and thereby start the motor 3e and fan into action and the light bulbs 60 will be illuminated. j

The manner of manipulation and the operation of the ventilator has already been indicated but may be briefly summarized as follows:

Normally lever 2'? will be in the position shown by full lines in 4 against stop 39 and rotary core sections will be siown as indicated by dotted lines in Fig. 7, and in such position, the rotating core elements willbe turnedwith their air-conduits out of alignment with the fixed core elements, the motor and fan will be idle, and the light bulbs 60 will be dark, the only light then active being that from the pilot light 57.

places, to wit Between head plate 15 andsegmental joint flange 36; between port .29 of rotary core section 25 and intake spout 30 of the blower; between outer end: of inner rotary core section 25 and inner end of intermediate core section 21; between outer end of intermediate core section 21 and inner end of outer rotary core section 2a; between outer end of outer core section 24 and inner end or face of fixed core section 19; and between outer ends of conduit extension tubes 43 and outside finish plate 47, making in all six places of closure.

When lever 27 is moved to the position shown in Figs. 1, 5 and 10, against stop 38,

At such time, the air conduits are closed the following the rotary core sections or members will be positioned as shown by full lines in Figs. 1, 2, 3, 6 and 7, and both the foul air outlet and fresh air inlet conduits will be open as follows: Extension tube 35 will register with port 37 of head plate 15; the outlet conduit of inner core section 25 will be in registratlon with the outlet conduit of fixed intermediate core section 21 the outlet conduit of outer core section 24 will be in registration with the outlet conduits of intermediate core section 21; and outer fixed core section 19 and fixed air outlet tube as will be in registration with the outlet port 48, for the outlet of foul air from the interior of the vault.

be in registration with the intake spout 30 of t Y the blower, for the intake of fresh airthrough the blower.

Movement of the lever 27 to the position just noted for opening of the ports, causes switch 64 to close the motor circuit and start motor and hence blower-into action. V7 hen blower is inaction, it will producea strong blast of fresh air into the vault and theincreased pressure produced in the vault willv cause the foul air to be blown out through the above noted air outlet conduit so that there will be an ample supply of fresh air within the vault. As already noted, closing of the anotor circuit lights the light bulbs 60' and producesv a desirable amount of light in the vault. The pilot'light can remain in circuit at all times or be cut out as desiredas it functions only to assist the person in the vault in locating the ventilator and starting the same into action. I

Thisimproved vault ventilator has been put into practical commercial use and has been found highly efficient for the purposes had in view. It is easy to operate, affords an ample supply of fresh air when thrown into very securely against tampering. From what has been said, it, of course, follows that the commercial form of the device illustrated in the drawings is capable of various modificaaction and when outof action closes the vault tions all within the scope of the invention herein disclosed and broadly claimed.

What we claim is: y

1. In avault ventilator, an encasing cylinder and within said cylinder two sets of core sections provided with air conduits adapted to be moved into and out of registration by rotation of one set of said core sections in re--,

spect to the other, one set of core sections comprising inner, outer and intermediate members, the other set of core sections being positioned between the end and intermediate members of the first noted set ofcore sections, and

further combination with means for rotating one set of core sections in respect to the other.

2. In a vault ventilator, an encasing cylinder having fixed inner and outer end and intermediate axially spaced core sections, inner end and outer endrotary core sections mounted in said cylinder between said fixed intermediate core section and said fixed inner end I and outer end coresections respectively, said fixed and movable'core sections having air conduits adapted to be moved into and out of registration by rotation of the movable core sections.

3. In a vault ventilator, an encasing cylinder having fixed inner and outer end and intermediate axially spaced core sections, inner end and outer end rotary core sections mounted in said cylinder between said fixed intermediate core section and said fixed inner end and outer end core sections respectively, said fixed and movable core sections having air conduits adapted to be moved into and out of registration by rotation of the movable core sections, and a lever having connections for imparting simultaneous rotation to the rotary core sections.

4. In a vault ventilator, an encasing cylinder having fixed inner and outer end and intermediate axially spaced core sections, inner end and outer end rotary core sections in said cylinder between said fixed intermediate core section and said fixed inner end and outer end core sections respectively, said fixed and movable core sections having, fresh air intake and foul air outlet conduits adapted to be moved into and out of cooperative registration by rotation of the movable core sections, and means at the vault end of said ventilator for rotating said core sections.

5. The structure defined in claim 4; in which the air outlet conduit oi": the innermost rotary core section is provided with an ex tension tube having a cut-oil plate, and in a fixed head plate acting as a core member at the vault end of said cylinder and provided with an air conduit with which said air conduit is adapted to register when the oth r co-operating conduits are in alignment;

' 6. In a vault ventilator, an encasing; cylinder provided near its inner end with a peripheral fresh air intake port, a core-acting head plate fixed in respect to the inner end of said cylinder provided with a foul air outlet port, a core section fixed in the outer end of said cylinder and provided with a fresh air intake conduit and a foul air outlet conduit, rotary core sections mounted in said cylinder, the one having; fresh air intake and foul air outlet conduits for co-operation with the fresh air and foul air ports of said fixed outer core section, and the other rotary core section having an extension tube with a cut-01f plate co-operating with the foul air outlet port of said head, fresh air and foul air conduit extension tubes applied respectively in the fresh air and foul air ports of said fixed outer core section, a cut-0E plate rotatable with said rotary core sections but axially adjustable in respect thereto and having ports co-operating with said outer end fresh air and foul air conduit extension tubes, and means at the vault end of said vault or inner end of said ventilator for rotating' said members.

7. The cture defined in claim 6 in which said cylinder is also provided with an intermediate core section located between the inner and outer rotary core sections and having fresh air intake and foul air outlet conduits Coppers-ting therewith.

8. in a vault ventilator, an encasing cylinder and within said cylinder two sets of core sections provided with air conduits adapted to be moved into and out of registration by rotation of one set of said core sections in respect to the other, one set of core sections comprising inner, outer and intermediate ineiriers, the other set of core sections being positioned between the end and intermediate members of the first noted set of core sections, and means for rotating one set oi core sections in respect to the other, in further combination with air conduit tubes applied in the air conduits of end core sections for axial adjustment to adapt the ventilator to walls of different thickness, and additional cut-oflf means for opening and closing the air conduit tubes.

9. In a vault ventilator, an encasing cylinder having fixed inner and outer end and intermediate axially spaced core sections, inner end and outer end rotary core sections in said cylind r between said fixed intermediate core section and said fixed inner end and outer end core sections respectively, said fixed and movable core sections having fresh air intake and foul air outlet conduits adapted to be moved into and out of co-operative registration by rotation of the movable core sections, and means at the vault end of said ventilator for rotating said core sections, and in which the fixed outer end core section is provided with extension tubes and in further combination with a rotary plate-like member axially adjustable in respect to the outermost rotary core section, but rotatable therewith and having air passages adapted to be moved into and out of registration with said extension tubes.

In testimony whereof we affix our signatures.

str

OLIVER B. McCLINTOCK. SILVAN R. POPP. EDWARD C. HANSON. 

